What are all the rational roots of the polynomial f(x) = 20x4 + x3 + 8x2 + x – 12? negative four-fifths and three-fourths negative four-fifths and negative three-fourths –1, negative four-fifths, three-fourths, and 1 –1, negative four-fifths, negative three-fourths, and 1.

The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). one cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

You have a poultry farm and a poultry-processing unit. which product can you make using the waste products from your processing unit?

Need will give 100 ! in no less than one hundred fifty words, explain why it is important for engineers to sketch designs and use them to clarify their designs to other people, giving at least three reasons.